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DK Nanocell

We are taking part in the interdisciplinary graduate college called "Nanocell", with the project "Modelling of conformational transitions of fluorescent labelled proteins". ... more of DK Nanocell (Titel)

Illuminating a mixture of conjugated polymer and fullerene (e.g. C60) with light, an electron is transfered from the polymer chain onto the fullerene molecule.

Due to this charge transfer two radicals (positive polymer cation, negative fullerene anion) are created. These radicals can be investigated using electron spin resonance technique.

In this diploma thesis different conjugated polymer / fullerene mixtures have been investigated using light induced cw-ESR. In a next step a light induced time-resolved ESR-experiment has been set up and utilized. Additional information about the nature of the created charges could be deduced from these studies.